The images show features differently. NDVI mostly focuses on the Vegetation
and how healthy they are. The white part of the image is the photosynthesizing vegetation.
I zoomed in on the side of the mountain where it had what looked like a stream of light.
The SWIR image focuses on iron oxides, illite, kaolinite and carbonates.
It uses different shades of blues, grrays and white to determine the differences.
The TIR image uses bright colors to distinguish between features. It hightlights minerals and rocks.
The bright reds are areas rich with Quartzites Carbonates are greenish yellow.
It looks like the phoenix area is rich in these two types of components.
Around the mountain there is some blue and purples which are granitoids and basaltic rocks.
VNIR image highlights the vegetation as red as shown in my zoomed photo. It also shows urban areas
as blues, green, reddish-purple and whites. As you look at the image ther is a lot of reddish-purple
in the right hand corner where the developed city is. The vegetation is mostly where the farms are
and on the north east side of the mountain. These images use colors to easily identify features so
people who want to study the area or a certain geologic or vegetation aspect.